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Finding the Fourth Proportional to 149.51, 224.49 and 147.35

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Solution

The fourth proportional to 149.51, 224.49 and 147.35 is: 221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.51 : 224.49 = 147.35 : x
  2. Step 2: Convert to fraction form
    149.51/224.49 = 147.35/x
  3. Step 3: Cross multiply
    149.51x = 224.49 × 147.35
  4. Step 4: Simplify right side
    149.51x = 33,077.48
  5. Step 5: Solve for x
    x = 33,077.48/149.51
  6. Step 6: Final answer
    x = 221.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.